Merge pull request #53 from creative-commoners/pulls/1.3/symfony-min

DEP Set minimum symfony version to 3.4

.travis.yml

@@ -1,8 +1,4 @@
 version: ~> 1.0
 
 import:
-  - silverstripe/silverstripe-travis-shared:config/provision/self-jobs-range.yml
-
-env:
-  global:
-    - REQUIRE_RECIPE="4.x-dev"
+  - silverstripe/silverstripe-travis-shared:config/provision/standard-jobs-fixed.yml

composer.json

@@ -3,8 +3,8 @@
     "description": "SilverStripe configuration based on YAML and class statics",
     "license": "BSD-3-Clause",
     "require": {
-        "symfony/finder": "^2.8 || ^3.2 || ^4",
-        "symfony/yaml": "^2.8 || ^3.2 || ^4",
+        "symfony/finder": "^3.4 || ^4.0",
+        "symfony/yaml": "^3.4 || ^4.0",
         "marcj/topsort": "^1 || ^2",
         "psr/simple-cache": "^1.0",
         "php": "^7.3 || ^8.0"